Valve structure for acetylene-lamps and the like



` G. H. SHANKLIN. vALvE STRUCTURE Foa AcETYLENE LAMPS AND THE LIKE.

1,357,596.- Patented Nov. 2, 1920.

'APPLICATION FILED MAY 24, 1918.

GEORGE R. SHANKLIN, OF SPRINGFIELD, ILLINOIS.

vALvE STRUCTURE vnon AcETYLENE-LAMPS AND THE LIKE.

Specitlcaton of Letters Patent.

Patented Nov. 2, 1920.

Application led May 24, 1918. Serial No. 236,310.

l T 0 all 'w hom t may concern:

Be it known that I, GEoReE R. SHANKLTN, a citizen of the United States,residing at Springfield, in the county Iof Sangamon and State ofIllinois, have invented certainnew and useful Improvements in ValveStructuresfor Acetylene-Lamps andthe like, of which the following is adescription.

My invention belongs to that general class of valve devices particularlydesigned to control the flow or feed of fluid to the calcium carbid inacetylene gas lamps and the like. It has for its object the productionof a simple and efficient device for the pur pose stated, which isreliable in its action and durable in its operation.

To this end my invention consists in the novel construction, arrangementand combination of parts herein shown and described, and moreparticularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like orcorresponding parts,

Figure 1 is a central vertical section through an acetylene gas lampequipped with my improvement;

Fig. 2 is an enlarged vertical sectional view of the lower end of thefluid tube and its valve;

Fig. 3 is a transverse section substantially on line 3-3 of Fig. 2;

Fig. 4 is a transverse sectional view taken on the line 4-4 of Fig. 2;

Fig. 5 is a section similar to that shown in Fig. 2 illustrating aslightly modified form; and

Fig. 6 is a transverse view taken substantially on line 6-6 of Fig. 5.'

In the drawings, 1 represents the water chamber and 2 the carbid chamberof an acetylene lamp. The two are adapted to engage one another by theusualv screw threaded connection shown at 3. The water chamber 1 isprovided with the filling opening 4 provided with the cap 5. The gasreleased is conducted to the outlet 6, which in use is equipped with theusual tip, and if desired a reflector.

7 is a vertical water tube secured to and carried by the top of thewater chamber 1, extending therethrough downward and ending well withinthe carbid chamber so as to be positioned within the bed of carbidtherein. The lower end of the tube, as at 8, is formed with a valve seatadapted to coperate with the valve 9 carried upon the end of therotatable valve stem 10. The upper portion of the valve stem 10 issecured to and carried by the thimble 11 in threaded engagement at 12with the upper end of the tube 7. The upper end of the valve rod 10 ispreferably bent over as at 13 to afford a convenient means for rotatingthe valve.

The valve 9 has rigidly secured thereto a sleeve 14 which loosely androtatably embraces the lower' end of the tube 7 and eX- tends downwardbelow the valve. The said sleeve is provided with slotted openings 15substantially in line with the valve and valve seat so that the fluidreleased thereby may escape through the openings.

In the form shown in Figs. 5 and 6, a similar construction isillustrated, the sleeve 14 being firmly pinned to the valve 9 by pins16, or equivalent means. In this form also the valve is reduced on twoor more points as at 17 so as to permit the fluid to escape between theedge of the` valve and the sleeve at that oint, while at the same timethe valve e ectively seats upon the valve seat and controls the flow ofthe fluid.

The operation is apparent and requires no descriptlon.

Having thus described my invention, what I claim as new and desire tosecure by Let- 2. In a device of the kind described, a 100 vertical tubehaving a valve seat formed on the lower end thereof, in combination witha rotatable valve stem loosely extending within the tube and carryingupon its lower end a valve adapted to coperate with the 105 valve seatto control the flow of liquid, and a sleeve loosely embracingthe tube,secured to the valve, said sleeve having peripheral openings to permitthe escape of fluid be tween the valve and sleeve when the valve 110 isopened.

3. In a device of the kind described, a

vertical tube havingl aV valve seat -at the lower end thereof, incombination with a rotatable valve stern loosely positioned in the tubeand carrying upon the lower end a the lower end thereor` a valve adaptedtocooperate with the valve seat to control the low of fluid, a sleeveloosely embracing the tube and said valve and .projecting below valveada Jted'to seat uaon the valve seat 4an of the valve aarts'aconsiderable distance and to be adjustedto control the flow o'iluid,.and a sleeve loosely embracing 'the tube and secured to the valveat a point below the tube, said sleeve being open at its lower end, andbeing` of a length to project a considerable distance below any of thevalve parts so as to space the saine from the L carbid or the like inwhich the tube is ern-V vertically disposed tubehaving a valve seat atthe lower end thereof, a valve stein loosely positioned within the tubeand having at so as to form a substantial housing therefor, said sleevehaving one or more peripheral openings at a .point opposite the valveand said sleeve being secured to the valve whereby to maintain therelative position of said openings and valve regardless p of theadjustment of the latter.

ln testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

' GEORGE R. SHANKLN. l/lfitnesses: Y f

JOHN N. SrIEL'roN, GEO. A. CALDWELL.

